Support for shafting



l lJqA'. EVANS.

(No Model.) Y

SUPPORT FQR'SHAPTIVNG. No. 484,148.

- Patented 001;. 11, 1892.

UNITED STATES PATENT. OFFICE.

J OI-IN A. EVANS, RICHMOND, INDIANA.Y

SUPPORT FOR sl-iAF'rlNc.

SPECIFICATION forming :part of Letters Patent No. 484,148, dated October 11, 1892.

Application tiled March 28, 1892.

To all whom t may concern:

Be it known that I, JOHN A. EVANS, a citizen of the United States, residing at Richmond, in the county of Wayne and State of Indiana, have invented certain new and usefull Improvements in Supports and Bearings for Sha-fting; and I do hereby declarethe following to be a full, clear, and exact description of the invention, such as Wllenable others skilled in the art to which it appertains to make and use the same.

This invention has particular reference to that class of devices designed to raise and hold in elevated position the sashes of greenhouses for the purpose of ventilation; and its object is to provide such devices with certain novel and advantageous features, substantially as hereinafter described, and particularly set forth in the subjoined claims. t

In the accompanying drawings, illustrati ng the invention, Figure l is a side elevation of my improved device. Fig. 2 is a front view of the upper part of the supporting-post, showing in full lines the bracket for supporting the upper end of the postattached to a horizontal rafter of the greenhouse and in dotted lines said bracket attached to an inclined rafter. Fig. 3 isa longitudinal section through one of the bearing-boxes and bracket. Fig. 4 is a section through Fig. l. Fig. 5 is a detail View of the sprocket-Wheel which is fastened on the line-shaft, and Fig. 6 is a detail view of part of the operating mechanism.

The same letters and numerals of reference designate the same parts in the several figures.

A represents the supporting-post, which is suitably secured or anchored at its bottom. B designates a bracket, which is secured tothe upper end of said post and is formed to provide bearings for the line-shaft C, and D designates a bracket for holding the upper end of said post rigid against vibration during the operation of the line-shaft.

The bracket B consists of the two horizontal arms b, which are connected together at one side by a vertical arm bx, and are constructed at their ends b to encircle the post A, to Which they are bolted, as shown at b2, and the arms b3, which extend vertically from the upper horizontal arm b and are each provided or formed at its upper extremity with Serial No. 426,679. (No model.)

a bearing-box b4. Each ot' these bearing-boxes b4 is formed to provide three communicating` chambers l, 2, and 3, of which chambers 2 and 3 are located side by side', forming practically located above and between said chambers 2 and 3, as clearly shown in Fig. 4. Located Within chambers 2 and 3 are freely-rotatable wheels or rollers E, and through the chamber l passes the line-shaft C, the under side of ,which rests on said wheels or rollers. Thus I have provided a simple and practical means for supporting the line-shaft which will permit it to rotate Without friction, and I thereby reduce Wear on the shaft and increase the ease with which it may be operated.

The bracket D is made in two parts D. and kD2. Part D is preferably formed integral around its rim. Part D2 has a flange d2, extending upward from its upper end and is formed around the rim of its circular portion with a flange d3, which engages said flange d. It is further formed with curved openings d4, which are located on opposite sides of its axial center, and through said curved openings and perforations in the part D extend bolts D3, Which serve to connect said parts D and Da together in such manner as to permit part D2 to be adjusted on said part D', so that flange cl2 Will extend either vertically or at an angle With respect lo said part D. Thus it will be seen that said part D2. may be attached to rafters which extend either horizontally, vertically, or incliningly with respect to said bracket. This is an important and advantageous feature of my invention, as Will be readily seen. The flange d2 is provided with a horizontal flange d5, which is designed to engage the under side of a rafter, and is formed with openings for the passage ot' bolts or other suitable means for securing the device to the rafter. That portion of the flange d2 situated above the Harige d5 is formed With openings for a similar purpose. The bracket D is further formed with an opening extending through its axial center for the passage of the line-shaft C, and the part D2 has an inwardly-extending iiange d immediately surrounding said opening, which keeps dust, dirt, &c., from entering the space between parts one continuous chamber, and chamber l is with the end of' the adjacent bearing-box b4, and is formed with a fiange d', extending` IOO D and D2 and at the same time strengthens and stiffens the bracket.

F designates the sprocket-wheel, which is secured on the line-shaft C between the arms 3 of bracket B. Projecting horizontally from one side of the sprocket-wheel is the hub f, the opening f through which is of vgreater diameter than the shaft. One, end of this hub is straight and its other end is curved and forms a ha1f-bearing for the shaft, the other half-bearingfor said shaft being formed by a gib F', which has a concave under surface to engage the shaft and a flat upper surface engaged by a set-screw f2, which serves to clamp said gib firmly to the shaft, and thereby holds the sprocket-wheel fast on the same. This sprocket-wheel is connected with and driven by a suitable mechanism for operating the line-shaft. One form of mechanism suitable for this purpose is shown in the drawings, and consists ot' a horizontal shaft G, which has its bearings in a suitable sectional collar H, which is suitably fastened in position around the post A, said shaft having at one end a sprocketwheel I, connected by an endless sprocketchain I with said sprocket-wheel F, and at its opposite end a worm-wheelJ,wl1ich meshes with a worm K on the inner end of a shaft L, which extends at right angles to said shaft Gr and has at its outer end a suitable hand-wheel for operating the device.

Theline-shaftC is connected with the sashes of the greenhouse by means of a series of jointed arms N, as is common in this class of devices.

The operation and advantages of my improved device will be obvious to those skilled in the art to which this invention appertains without any further description.

Having now described my invention, I claiml. The combination, with the post, of a bracket secured at its lower end to the upper end of said post and having upwardly-pro a post supporting the bearing-boxes for said line-shaft, of a bracket contiguous to one of said bearing-boxes, said bracket having an opening for the passage of the linenshaft and being made in two parts, one of said parts having a flange adapted to be secured to a rafter of a building and also having elongated curved openings and both of said parts having inwardly-projecting anges d', d3, and d6, arranged as described, and bolts passing through said curved openings in one of the parts and through perforations in the other of the parts, substantially as and for the purposes set forth. 1

3. rlhe combination of the post., line-shaft, bracket having arms provided with bearingboXes for the line-shaft, a bracket for supporting the upper end of said post, said bracket consisting of two parts, one ot' which is adjustable on the other and has a flange designedto be secured tov a rafter of a building, a wheel on s'aid line-shaft between the arms of said iirst-mentioned bracket, arms designed to connect said line-shaft with windowsashes, and operating means connected with said wheel, substantially as described. f

In testimony whereof I affix my signature in presence of two witnesses.

JOHN A. EVANS. Witnesses: l

FRANK C. ROBERTS, W. T. DENNIS. 

